I'm on the fence about this one. To me regardless if it was a HO shot or not, it looked untentional from both sides because it was in the mist of a turn. Me personally, when I am going HO angle, I'll usually wiggle my wings as in a "no shot shot" and more or less, most people respect and understand it. Reason I am on the fence about it however, is being Changie is a squadmate, and Dolby is someone I respect as well (and my old ID was Dolby as well).
My two cents though: As long as the game exists, there is going to be HO shots and that will never stop.